The actor/director and his crew never met the 95-year-old Tv and movie legend during the shoot, because she was confined to her bedroom throughout the project - and too sick for visitors.

Meanwhile, a Hancock Park, Los Angeles estate doubled for the Canadian ambassador's residence in Tehran, Iran and the Ontario International Airport just outside the city became the Tehran airport for the film.

Affleck and his cast and crew also spent a month shooting in Istanbul, Turkey.

Argo, which debuts in U.S. cinemas on Friday (12Oct12), chronicles the real-life Central Intelligence Agency (Cia) rescue effort to free six Americans from Iran during the country's revolution, which began in 1979.